Fig. 1
From: Genome-wide association study of individual sugar content in fruit of Japanese pear (Pyrus spp.)
Genetic structure of plant materials used in this study. a Principal component analysis was performed in software PLINK v1.90 using 3484 tag single-nucleotide polymorphisms (SNPs). The major parental cultivars of populations in this study (‘Kanta’, ‘Akizuki’, and ‘Hoshiakari’) are indicated by arrows. b Population structure estimated for each cross and the cultivar collection in software ADMIXTURE 1.30 at K = 3 and K = 4. The color used for each population corresponds to the color of its predominant cluster at K = 4 in b